Now what?

So I have finished a first (very rough) draft of my book. It's a fiction novel that covers the life of a woman from the mid-1940s until the mid-1960s. It's a tumultuous book without a ton of hope or redemption. The first draft came in a 99,300 words. I am currently working on the rewrite (which I think is harder than the first draft). There's a lot to do yet for this book--for it to be good, to be finished, to be published.

But now, I am wondering, what do I write?

I have perused my writing journals for the past four years and realized that I've been telling this story in varied forms for the past 4 years. It needed to get out.

But now that it is told, what should I write? Really, I have no idea.

Should it be another fiction story. I'm not sure I have another one in me. Should I work on those two non-fictions that have been rolling around in my head? I don't have enough experience to write those. And truth be told, I don't think I'm very good at non-fiction. Should I focus on blog writing and building my platform (that's an idea where writers increase their base so as to show publishers that a potential book would have a market. I buckle against this a bit)

From what I've heard, most writers have more than one project going at any one time. Some even jump from project to project depending on their mood.

I don't have any other projects.

And I know that I already miss the creating aspect of writing. It's only been three weeks since I finished my draft and I am aching for the joy of creative writing, for discovering where a character is going to take me, for following an action out to it's furthest consequence. I miss storytelling.

I'm not any further ahead than I was at the beginning of this post. But now at least, you know as well. You're a creative bunch, got any brilliant ideas? I'm open to suggestions, if you have any!